Improvement in windlasses



UNI ED ST TEs WILLIAM P. DAVIS, OF HONEOYE FALLS, NEW YORK.

IMPROVEMENT IN WINDLASSES.

Specification forming part of Letters Patent No. 119,126, dated September 19, 1871.

To all whom it may concern:

Be it known that I, WILLIAM. P. DAVIS, of Honeoye Falls, in the county of Monroe, in the State of New York, have invented a new and useful Improvement in Windlasses; and I do hereby declare that the following is a full and exact description thereof reference being had to the accompanying drawing and to the letters of reference marked thereon.

Figures 1 and 2 represent side elevations of my improved Windlass with the cap of the crank wheel removed, excepting its segmental lugs, to show the working internal mechanism. Fig. 3 represents a central section taken at the line was of Fig. 4. Fig. 4 is a top view or plan of the windlass as applied to awell-curb by means of a suitable box and bracket-support.

The short piece of timberA denotes what represents anedge view of one side of a well-curb, to which the box-bracket B is secured to support one end of a Windlass-roller, (J, which is represented as broken off. The pawl D has an arm, 01, which prevents the pawl from falling too far away from the ratchet, into which it works. This ratchet-wheel E is constructed with an arm, 6, which, at its termination, is connected by a fulcrumpin, f, to the crank-arm F. The crank-arm F ends in a ring, G, which surrounds the windlass-roller G. The two segmental flanges or lugs c z are shown in sectional views, as detached, in Figs. 1 and 2, but they are connected with and form a part of the cap H, which is secured by a pin to the outer end of roller 0, and revolve with it. There is a small projection or dog, 0, formed on the inner edge of the ring G, which, by the action of the spring shown in dotted lines at m in Figs. 1 and 2, is caused to be held in one of the two openings between the lugs i 'i when the Windlass is operated to elevate a weight or bucket of water.' The dog 0 and lugs i i constitute a clutch. The weight or bucket will be connected with the roller 0 by a chain or rope in the usual manner.

When it is desired to allow the bucket to descend a short reverse movement will be given to the crank-arm F; and as the pawl will prevent ratchetwheel E from turning backward, and as the crank-arm moves as a lever on its fulcrum f, the effect will be to raise the dogo out of the connection with the lugs i i, which will permit the roller 0, with the cap H and its lugs, to revolve backward until the bucket has descended to the necessary extent or depth; and while the bucket is thus descending by its own gravity the crankarmF may be depressed so as to bring the inner edge of the ring G in contact with the segmental lugs c r, so as to act as a brake to govern the speed of the descent of the bucket. The forward movement of rotation of the crank-arm is indicated by the arrow a.

From the foregoing description it will be seen that the cap H and its segmental lugs 11 i are the only parts of the mechanism which are fixed upon the roller 0 so as always to rotate with it.

Having fully described my improvement in windlasses, what I claim, and desire to secure by Letters Patent, is-- The crank'arm F, provided with the dog 0 and brake-ring G, in combination with the ratchet wheel E and fulcrumarm 0, arranged and operating conjointly with the cap H and segmental lugs i i, substantially as described, for the purpose specified.

In testimony whereof I have hereunto set my hand this 10th day of April, 1871.

W. P. DAVIS.

Witnesses:

H. P. K. 191201;, J. R. STEVENSON. 

